Airworthiness Directives; The Boeing Company Airplanes
| Published date | 12 November 2019 |
| Citation | 84 FR 60900 |
| Record Number | 2019-24501 |
| Section | Rules and Regulations |
| Court | Federal Aviation Administration |
Federal Register, Volume 84 Issue 218 (Tuesday, November 12, 2019)
[Federal Register Volume 84, Number 218 (Tuesday, November 12, 2019)]
[Rules and Regulations]
[Pages 60900-60902]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-24501]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2019-0583; Product Identifier 2019-NM-063-AD; Amendment
39-19780; AD 2019-22-01]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
certain The Boeing Company Model 787-8 airplanes. This AD was prompted
by a report of an escapement from the wing spar terminal fitting
supplier indicating that the engineering requirements provided by
Boeing for controlling machine mismatch were incorrect for part faying
surfaces, which can result in a reduced fatigue capability at the
interface of the side of body (SOB) rib. This AD requires repetitive
inspections for fatigue cracking and applicable on-condition actions
for the SOB rib webs where fastener locations attach the terminal
fittings. The FAA is issuing this AD to address the unsafe condition on
these products.
DATES: This AD is effective December 17, 2019.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of December 17,
2019.
ADDRESSES: For service information identified in this final rule,
contact Boeing Commercial Airplanes, Attention: Contractual & Data
Services (C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA
90740-5600; telephone 562-797-1717; internet https://www.myboeingfleet.com. You may view this service information at the
FAA, Transport Standards Branch, 2200 South 216th St., Des Moines, WA.
For information on the availability of this material at the FAA, call
206-231-3195. It is also available on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2019-
0583.
Examining the AD Docket
You may examine the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2019-
0583; or in person at Docket Operations between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays. The AD docket contains
this final rule, the regulatory evaluation, any comments received, and
other information. The address for Docket Operations is U.S. Department
of Transportation, Docket Operations, M-30, West Building Ground Floor,
Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT: Allen Rauschendorfer, Aerospace
Engineer, Airframe Section, FAA, Seattle ACO Branch, 2200 South 216th
St., Des Moines, WA 98198; phone and fax: 206-231-3528; email:
[email protected].
SUPPLEMENTARY INFORMATION:
Discussion
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 by adding an AD that would
[[Page 60901]]
apply to certain The Boeing Company Model 787-8 airplanes. The NPRM
published in the Federal Register on August 9, 2019 (84 FR 39239). The
NPRM was prompted by a report of an escapement from the wing spar
terminal fitting supplier indicating that the engineering requirements
provided by Boeing for controlling machine mismatch were incorrect for
part faying surfaces, which can result in a reduced fatigue capability
at the interface of the SOB rib. The NPRM proposed to require
repetitive inspections for fatigue cracking and applicable on-condition
actions for the SOB rib webs where fastener locations attach the
terminal fittings.
The FAA is issuing this AD to address fatigue cracks in the left
and right SOB rib webs common to the front and rear wing spar terminal
fittings. Undetected fatigue cracks can grow to weaken primary wing
structure where it cannot sustain limit load, which could adversely
affect the structural integrity of the airplane.
Comments
The FAA gave the public the opportunity to participate in
developing this final rule. The FAA has considered the comment
received. Boeing indicated its support for the NPRM.
Conclusion
The FAA reviewed the relevant data, considered the comment
received, and determined that air safety and the public interest
require adopting this final rule as proposed, except for minor
editorial changes. The FAA has determined that these minor changes:
Are consistent with the intent that was proposed in the
NPRM for addressing the unsafe condition; and
Do not add any additional burden upon the public than was
already proposed in the NPRM.
Related Service Information Under 1 CFR Part 51
The FAA reviewed Boeing Alert Requirements Bulletin B787-81205-
SB570036-00 RB, Issue 001, dated December 14, 2018. The service
information describes procedures for repetitive high frequency eddy
current or ultrasonic inspections for fatigue cracking and applicable
on-condition actions for the SOB rib webs where fastener locations
attach the terminal fittings. On-condition actions include repair. This
service information is reasonably available because the interested
parties have access to it through their normal course of business or by
the means identified in the ADDRESSES section.
Costs of Compliance
The FAA estimates that this AD affects 1 airplane of U.S. registry.
The FAA estimates the following costs to comply with this AD:
Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
Cost on U.S.
Action Labor cost Parts cost Cost per product operators
----------------------------------------------------------------------------------------------------------------
Inspection....................... Up to 32 work-hours $960 Up to $3,680 per Up to $3,680 per
x $85 per hour = inspection cycle. inspection cycle.
Up to $2,720 per
inspection cycle.
----------------------------------------------------------------------------------------------------------------
The FAA has received no definitive data that would enable the
agency to provide cost estimates for the on-condition actions specified
in this AD.
According to the manufacturer, some or all of the costs of this AD
may be covered under warranty, thereby reducing the cost impact on
affected individuals. The FAA does not control warranty coverage for
affected individuals. As a result, the FAA has included all known costs
in our cost estimate.
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, section 106, describes the
authority of the FAA Administrator. Subtitle VII: Aviation Programs,
describes in more detail the scope of the Agency's authority.
The FAA is issuing this rulemaking under the authority described in
Subtitle VII, Part A, Subpart III, Section 44701: ``General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.
This AD is issued in accordance with authority delegated by the
Executive Director, Aircraft Certification Service, as authorized by
FAA Order 8000.51C. In accordance with that order, issuance of ADs is
normally a function of the Compliance and Airworthiness Division, but
during this transition period, the Executive Director has delegated the
authority to issue ADs applicable to transport category airplanes and
associated appliances to the Director of the System Oversight Division.
Regulatory Findings
This AD will not have federalism implications under Executive Order
13132. This AD will not have a substantial direct effect on the States,
on the relationship between the national government and the States, or
on the distribution of power and responsibilities among the various
levels of government.
For the reasons discussed above, I certify that this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Will not affect intrastate aviation in Alaska, and
(3) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive (AD):
2019-22-01 The Boeing Company: Amendment 39-19780; Docket No. FAA-
2019-0583; Product Identifier 2019-NM-063-AD.
[[Page 60902]]
(a) Effective Date
This AD is effective December 17, 2019.
(b) Affected ADs
None.
(c) Applicability
This AD applies to The Boeing Company Model 787-8 airplanes,
certificated in any category, as identified in Boeing Alert
Requirements Bulletin B787-81205-SB570036-00 RB, Issue 001, dated
December 14, 2018.
(d) Subject
Air Transport Association (ATA) of America Code 57, Wings.
(e) Unsafe Condition
This AD was prompted by a report of an escapement from the wing
spar terminal fitting supplier indicating that the engineering
requirements provided by Boeing for controlling machine mismatch
were incorrect for part faying surfaces, which can result in a
reduced fatigue capability at the interface of the side of body
(SOB) rib. The FAA is issuing this AD to address fatigue cracks in
the left and right SOB rib webs common to the front and rear wing
spar terminal fittings. Undetected fatigue cracks can grow to weaken
primary wing structure where it cannot sustain limit load, which
could adversely affect the structural integrity of the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
Except as specified by paragraph (h) of this AD: At the
applicable times specified in the ``Compliance'' paragraph of Boeing
Alert Requirements Bulletin B787-81205-SB570036-00 RB, Issue 001,
dated December 14, 2018, do all applicable actions identified in,
and in accordance with, the Accomplishment Instructions of Boeing
Alert Requirements Bulletin B787-81205-SB570036-00 RB, Issue 001,
dated December 14, 2018.
Note 1 to paragraph (g): Guidance for accomplishing the actions
required by this AD can be found in Boeing Alert Service Bulletin
B787-81205-SB570036-00, Issue 001, dated December 14, 2018, which is
referred to in Boeing Alert Requirements Bulletin B787-81205-
SB570036-00 RB, Issue 001, dated December 14, 2018.
(h) Exception to Service Information Specifications
Where Boeing Alert Requirements Bulletin B787-81205-SB570036-00
RB, Issue 001, dated December 14, 2018, specifies contacting Boeing
for repair instructions: This AD requires doing the repair using a
method approved in accordance with the procedures specified in
paragraph (i) of this AD.
(i) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Seattle ACO Branch, FAA, has the authority to
approve AMOCs for this AD, if requested using the procedures found
in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request
to your principal inspector or local Flight Standards District
Office, as appropriate. If sending information directly to the
manager of the certification office, send it to the attention of the
person identified in paragraph (j) of this AD. Information may be
emailed to: [email protected].
(2) Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the local flight standards district office/certificate holding
district office.
(3) An AMOC that provides an acceptable level of safety may be
used for any repair, modification, or alteration required by this AD
if it is approved by The Boeing Company Organization Designation
Authorization (ODA) that has been authorized by the Manager, Seattle
ACO Branch, FAA, to make those findings. To be approved, the repair
method, modification deviation, or alteration deviation must meet
the certification basis of the airplane, and the approval must
specifically refer to this AD.
(j) Related Information
For more information about this AD, contact Allen
Rauschendorfer, Aerospace Engineer, Airframe Section, FAA, Seattle
ACO Branch, 2200 South 216th St., Des Moines, WA 98198; phone and
fax: 206-231-3528; email: [email protected].
(k) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the service information listed
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless the AD specifies otherwise.
(i) Boeing Alert Requirements Bulletin B787-81205-SB570036-00
RB, Issue 001, dated December 14, 2018.
(ii) [Reserved]
(3) For service information identified in this AD, contact
Boeing Commercial Airplanes, Attention: Contractual & Data Services
(C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-
5600; telephone 562-797-1717; internet https://www.myboeingfleet.com.
(4) You may view this service information at the FAA, Transport
Standards Branch, 2200 South 216th St., Des Moines, WA. For
information on the availability of this material at the FAA, call
206-231-3195.
(5) You may view this service information that is incorporated
by reference at the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, email [email protected], or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued in Des Moines, Washington, on October 29, 2019.
Michael Kaszycki,
Acting Director, System Oversight Division, Aircraft Certification
Service.
[FR Doc. 2019-24501 Filed 11-8-19; 8:45 am]
BILLING CODE 4910-13-P
